GARbro-mirror/Legacy/Airyu/ArcCHR.cs
2023-08-24 01:33:50 +04:00

108 lines
4.1 KiB
C#

//! \file ArcCHR.cs
//! \date 2018 Apr 08
//! \brief Airyu archive format.
//
// Copyright (C) 2018 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Windows.Media;
namespace GameRes.Formats.Airyu
{
[Export(typeof(ArchiveFormat))]
public class ChrOpener : ArchiveFormat
{
public override string Tag { get { return "CHR/AIRYU"; } }
public override string Description { get { return "Airyu resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
static readonly uint[] ImageSizes = new[] { 0x96000u, 0x4B000u, 0x19000u };
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.HasExtension (".chr"))
return null;
int count = 0;
uint image_size = 1;
for (int i = 0; i < ImageSizes.Length; ++i)
{
image_size = ImageSizes[i];
count = (int)(file.MaxOffset / image_size);
if (IsSaneCount (count) && count * image_size == file.MaxOffset)
break;
count = 0;
}
if (0 == count)
return null;
uint offset = 0;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new Entry {
Name = i.ToString ("D5"),
Type = "image",
Offset = offset,
Size = image_size,
};
dir.Add (entry);
offset += image_size;
}
return new ArcFile (file, this, dir);
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new ChrImageDecoder (input, entry.Size);
}
}
internal class ChrImageDecoder : BinaryImageDecoder
{
int m_image_size;
int m_stride;
public ChrImageDecoder (IBinaryStream input, uint size) : base (input)
{
m_image_size = (int)size;
switch (size)
{
case 0x19000: Info = new ImageMetaData { Width = 200, Height = 256, BPP = 16 }; break;
case 0x4B000: Info = new ImageMetaData { Width = 320, Height = 480, BPP = 16 }; break;
case 0x96000: Info = new ImageMetaData { Width = 640, Height = 480, BPP = 16 }; break;
default: throw new InvalidFormatException ("Invalid image size.");
}
m_stride = Info.iWidth * 2;
}
protected override ImageData GetImageData ()
{
var pixels = m_input.ReadBytes (m_image_size);
return ImageData.CreateFlipped (Info, PixelFormats.Bgr555, null, pixels, m_stride);
}
}
}